The LloydRelaxer: An Approach to Minimize Scaling Effects for Multivariate Projections
The LloydRelaxer: An Approach to Minimize Scaling Effects for Multivariate Projections
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LloydRelaxer:一种最小化多元投影尺度效应的方法
DOI:
10.1109/tvcg.2017.2705189
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发表时间:
2017
影响因子:
5.2
通讯作者:
Holger Theisel
中科院分区:
文献类型:
--
作者:
Dirk J. Lehmann;Holger Theisel
Star Coordinates are a popular projection technique in order to analyze and to disclose characteristic patterns of multidimensional data. Unfortunately, the shape, appearance, and distribution of such patterns are strongly affected by the given scaling of the data and can mislead the projection-based data analysis. In an extreme case, patterns might be more related to the choice of scaling than to the data themselves. Thus, we present the LloydRelaxer: a tool to minimize scaling-based effects in Star Coordinates. Our algorithm enforces a scaling configuration for which the data explains the observed patterns better than any scaling of them could do. It does so by an iterative minimizing and optimization process based on Voronoi diagrams and on the Lloyd relaxation within the projection space. We evaluate and test our approach by real benchmark multidimensional data of the UCI data repository.
影响因子:
0.8
作者:
D. Dobkin;Steven J. Friedman;K. Supowit
通讯作者:
D. Dobkin;Steven J. Friedman;K. Supowit
影响因子:
2.5
作者:
D. Lehmann;H. Theisel
通讯作者:
D. Lehmann;H. Theisel
DOI:
10.1109/tvcg.2015.2467717
发表时间:
2016-01-01
影响因子:
5.2
作者:
Stahnke, Julian;Doerk, Marian;Thom, Andreas
通讯作者:
Thom, Andreas